package oopday01;

public class ConsDemo {
    public static void main(String[] args) {
        Student wqq = new Student();
        wqq.say();
        wqq.sayHi();
        wqq.playWith("xx");
        Student xx = new Student(18,"xx");
        xx.say();
        xx.sayHi();
        xx.playWith("wqq");
        Student xmy= new Student(18,"xmy","2302","01");
        xmy.say();
        xmy.sayHi();
        xmy.playWith("wqq");
    }
}
